Experience the future of display technology with this innovative 7.5-inch E-ink Screen featuring advanced passive near field communication (NFC) technology. Designed for energy efficiency and environmental friendliness, this electronic ink screen operates without a built-in battery, eliminating concerns about battery life and cumbersome wiring. Its wireless power supply enables seamless content refresh through NFC-enabled smartphones or card readers, making it an ideal solution for dynamic yet low-power display needs. Key Features: · Passive Near Field Communication Technology: Utilizes cutting-edge passive NFC for wireless power supply and data refresh without the need for internal batteries, ensuring hassle-free and eco-friendly operation. · Wireless Power Supply: Supports wireless power transmission from NFC-enabled devices, enabling effortless and battery-free screen refreshing. · High-Quality Display: Features a black and white E-ink screen with 2 gray levels, providing clear and crisp visuals with a resolution of 800 x 480 pixels. · Large Viewing Angle: Offers a wide viewing angle greater than 170°, ensuring excellent visibility from multiple perspectives. · Fast Refresh Rate: Displays updated content within approximately 5 seconds (excluding data transmission time), combining responsiveness with energy efficiency. · Durable and Stylish Design: Encased in a sleek, thin ABS shell that combines durability with an attractive appearance, suitable for various indoor applications. · Easy Installation and Operation: Built to strict quality standards with simple setup and mobile APP control, making it user-friendly and reliable. · Compact Size: Measures approximately 163.2 x 97.92 mm (6.4 x 3.9 inches), making it suitable for a variety of display environments without occupying excessive space. Specifications: · Item Type: E-ink Screen · Power Supply: Wireless Power Supply via Passive NFC · Gray Level: 2 · Display Color: Black and White · Refreshing Time: Approx. 5 seconds (excluding data transmission time) · Dot Pitch: 0.205 x 0.204 mm · Display Size: Approx. 163.2 x 97.92 mm (6.4 x 3.9 in) · Resolution: 800 x 480 pixels · Viewing Angle: >170° Package Includes: · 1 x 7.5-inch E-ink Screen This battery-free E-ink screen with passive NFC technology offers an eco-friendly, wireless solution for dynamic display needs. Its combination of energy-saving design, clear black-and-white visuals, and simple wireless operation makes it perfect for signage, information boards, and other applications requiring frequent content updates without the hassle of power cables or battery replacements.